At first glance, the catalog's pitch for lawn chairs appears ordinary: A seated man and woman relax near a tree-lined lake shore, enjoying drinks.

But look closer. "Supports up to 800 lbs," reads the text next to the man's $139.95 lawn chair.

Flip deeper into the catalog, and the products get even more specialized, such as a "Big John" toilet seat with a 1,200-pound capacity -- "larger than any other toilet seat in the world" -- priced at $124.95.

The products are in LivingXL, an online and print catalog introduced in May by the parent company of Casual Male XL, the nation's largest chain of men's plus-size clothing and apparel stores. Casual Male Retail Group hopes to parlay the marketing know-how from its 500 stores into the largely untapped market for specialty products that make life easier for the growing population of obese men and women.

The Canton, Mass.-based chain is the first large retailer to enter the niche, now served by a handful of mom and pop catalog and online retailers offering a limited selection of products with little marketing glitz.

For Peggy Howell, a 300-pound woman who runs an online store featuring art with positive depictions of heavy people, LivingXL could help her more easily find products that give her confidence.

"My sister and I share a home in Las Vegas, and whenever we go to a party or an event, we take our special collapsible lawn chairs. We know we'll feel secure in them and comfortable."

LivingXL is the new incarnation of SuperSizeWorld.com, a Vancouver, Wash.-based online store that Casual Male bought for $400,000 in October. Casual Male Chief Executive David Levin learned about the business while reading an article on obesity last fall during a business trip.

The switch to a new name was in keeping with the company's rebranding of its stores last year from the old name Casual Male Big & Tall to Casual Male XL -- a move that dropped the word "big" to eliminate a term often seen as a code word for "fat" in the euphemism-rich world of retail branding.

Levin is trim but claims to understand the daily challenges heavier people face, in part because the company convened a focus group of overweight people to develop the catalog.

The group helped Casual Male navigate the idiosyncrasies of marketing lifestyle products to heavy people, who often feel stigmatized about their weight even though they're greater in number than ever before. About two-thirds of American adults are overweight or obese, compared with 47 percent from a survey done in the late 1970s, according to federal statistics.

A public-health advocate welcomes the marketplace's efforts to reach out to the growing ranks of overweight people but cautions against instilling any sense of complacency among heavy folks. Obesity raises the risk of heart disease, diabetes, arthritis and some cancers.

"It's a balancing act between assisting people coping with the results of being obese and not losing track of the public-health message about being more active and eating healthier diets," said Jeff Levi, executive director of the Trust for America's Health, a Washington-based non-profit.

Many heavy people favor shopping from the privacy of their homes over searching store aisles for such hard-to-find items as oversize bath towels and seat-belt extenders.

"Anyone who sells in the large-size market knows how many customers are traumatized by their size," said Bill Mabrey, president of Amplestuff, a Bearsville, N.Y.-based online and mail-order catalog that he describes as "a mom and pop store" with less than $200,000 in sales a year.

"Often, people who need this stuff have a sense of hopelessness, and some are even afraid to go out in public because there's no place they can go and sit down in a chair without breaking it," he said.